Wall board



Feb. 18, 1930. c. o. WALPER 1,747,339

WALL BOARD Filed March 15. 1926 Egg. 2

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Patented Feb. 18; 1930 UNITED STATES PATENT OFFICE CURRY O. WALPER, OF DETROIT, MICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS, TO UNITED STATES GYPSUM COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS WALL 30m Application filed March 15, 1928. SeriaI No. 94,796.

This invention relates to wall boards and more particularly plaster or composition boards, although it is equally applicable to different'kinds of building boards such asthose made of paper or pulp, and is even applicable to wood boards, particularly if they be used in the manner commonly employed in connection with wall board construction of partitions, etc. In such construction boards of suitable Widths are usually secured to or mounted in walls, frame work, or studdings, in edge to edge relation and often form the foundations for plaster work.

In such constructions, damage to the plaster or wall boards, due to nailing, shrinking of the boards, stufiings, or for other reasons, often results in the regions of the joints of such boards, or, due to the usage which the boards receive-prior to and during installation; and also, often due to the moisture containedin the plaster coat when applied thereto, the edges of the boards are damaged.

It .is, therefore, evident that protection of the edges of the ,wall boards against damage by nailing contact or by moisture is desirable,

and furthermore, the reinforcing of such edges is also desirable especially in cases where a number of boards are arranged edge to edge, one above the other, and are required to support weight upon their lower I edges.

This invention therefore has for its object to provide simple and effective means incorporated in wall boards to meet the different conditions hereinbefore referred to and to provide a wall board wherein adequate reinforcement and protection of the longitudinal edges is assured.

In carrying this invention into effect, I may adopt any of the novel constructions and arrangements of parts hereinafter described by way of example, having reference to the accompanying drawing, wherein Figure 1 is a perspective board embodying the said invention;

Figure 2 is a transverse section of the same;

Figure 3 is a fragmentary detail sectional viewof the same illustrating the method of securing the reinforcing channel to the edges and providing nailing facilities;

view of a wall Figure 4 is a fragmentary perspective view with part of the reinforcing channel removed; Figure 5 is a fragmentary perspective view of a Wall board showing a modified form of channel;

.Flgure 6 is a perspective View illustrating a still further modified form of the same;

Figure 7 is a perspective view showing another modification; and

Figure 8 is a fragmentary transverse section of the form shown in Figure 7.

Similar characters of reference indicate similar characters in the several figures of the drawing. r J

1 is a wall board which in this case is'indicated as being of the type having a plaster shown in Figures 1, 2, 3 and 4:, as comprising channel strips 5, the edges of which overlap the edges of the wall boards, it being intended that these strips be applied to the board when it is manufactured and the board sold as a new article of manufacture comprising a wall board having specially reinforced edges.

The channel strips may be of the form shown inFigure 4 and the same length as the bo'ard,the edges of the strip being passed over the margins of the board in its application thereto; or it'may be formed from a flat strip directly on to the marginal edge of the board by bending or rolling operations commonly known to sheet metal workers, and

suitably secured against accidental removal from the board. For example, as shown in Figures land 3, the marginal portions of the reinforcing strips 5 may be provided with a in Figure 1, or may be cut or weakened as at 7 in Figure 5, to facilitate the separation or the severing of the strip intermediate of its length if it be desired to cut the board to shorter lengths, as will be readily understood,

this form of strip being indicated in Figure 5 by the reference numeral5.

Also different methods may be adapted of securing the strip to the board, such as in Figure 6, where a reinforcing strip 8 is shown as having its edges9 bent inwardly of the board so thatthey are pressed into the face thereof, as shown.

' Figures 7 and 8 indicate a fabric reinforcement 10 which may be secured in position by means of an adhesive or such similar means and maybe coated or filled with water-proof or moisture resisting material to protect the edge of the board against the access of moisture thereto. This reinforcement 10 may be of wire fabric and be secured in position by pressing into the surface of the board or otherwise, and in such case may assist in the Y bonding together of the adjacent edges of boards when they are plastered as in building construction.

Many different materials may be employed in the reinforcement of the longitudinal edges of theboard as suggested and various means adapted for the securing of such reinforcement in position according to convenience or requirements, and this invention may be developed within the scope of the following claims without departing from the essential features of said invention, for which reason it, is desired that the specification and drawings be read as being merely illustrative and not in a limited sense except as necessi-' tated by the prior art.

What I claim? is I 1. As a new article of manufacture, a wall board for building construction, said wall board having a rigid channel shaped transversely divisible reinforcing strip overlap-- ping opposite edges thereof.

2. In an article of manufacture, a wallboard for building construction, said wallboard having a channel shaped reinforcing strip overlapping opposite edges thereof, portions of said stripbeing depressed into the surface of the wallboard to secure said strip 1 against detachment therefrom.

In testimony whereof I aifix-my signature.

' CURRY O. WALPER. 

